def add_two_numbers(a, b):
    return a + b

print(add_two_numbers(10, 22))


def is_prime(n):
    if n <= 1:
        return False
    for i in range(2, int(n**0.5) + 1):
        if n % i == 0:
            return False
        return True

print(is_prime(23))


# for i in range(1,100):
#
#         print(i)

# print(i)

#用递归实现阶乘
def factorial(n):
    if n == 0:
        return 1
    else:
        return n * factorial(n-1)
print(factorial(5))

